5results about How to "Uniform concentration distribution" patented technology

The utility model discloses an ammonium nitrate solution concentration blending reation kettle with anti -explosion function belongs to reation kettle equipment technical field, the utility model discloses a reation kettle body is communicated with the discharge valve at reation kettle body bottom, can carry out even heating to solution through the electric heating plate in the reation kettle body inner wall bottom groove, avoid local temperature too high and cause ammonium nitrate to decompose gas and cause explosion, the cooperation design of stirring rod and top motor can carry out sufficient stirring to ammonium nitrate solution in reation kettle, make solution concentration distribution even. The annular ring and the explosion -proof pipe fixedly connected with the annular ring that reation kettle body surface sets up up and down, effectively enhanced the overall structural strength of reation kettle, the gas outlet pipe of top annular ring and the gas inlet pipe of bottom annular ring mutually cooperate, and the outside cold gas enters the space between the explosion -proof pipe and reation kettle body, and then even cooling is carried out to reation kettle body, and then gas is discharged to the outside from the gas outlet pipe, and the device has the advantages that the explosion -proof effect is good.

The application discloses a kind of suitable for SCR denitration ammonia injection device and device, including ammonia injection pipe and the ammonia injection port of setting at ammonia injection pipe end, ammonia injection pipe includes ammonia main pipeline, branch pipeline and branch pipeline;Along ammonia main pipeline circumferential direction, equidistantly there are several branch pipelines;In branch pipeline, equidistantly and parallelly there are several vertical branch pipeline branch pipelines;Several branch pipelines are in the same plane, plane vertical branch pipeline;In branch pipeline, there is vertical plane ammonia injection port;Ammonia injection port gas outlet direction is same with ammonia main pipeline inner gas flow direction.The ammonia injection device suitable for SCR denitration designed in the application, including branch pipeline and branch pipeline, ammonia injection pipeline because each part branch pipe length is small, and the difference of branch pipeline diameter is not big, so it can reduce the flow resistance of ammonia in pipeline.

The utility model provides a kind of manganese sulfate solution adjusting device in electrolytic cell, comprising: electrolytic cell, buffer pool, transfer pool, sedimentation tank, the lower part of the buffer pool is connected with electrolytic cell side by first conveying pump, electrolytic cell other side is equipped with overflow pipe, overflow pipe is communicated with electrolytic cell by first connecting pipe, overflow pipe upper end is lower than the liquid level height in electrolytic cell, and overflow pipe upper part is equipped with overflow tank.The utility model is circulated between the manganese sulfate solution in electrolytic cell and buffer pool by first conveying pump by being equipped with buffer pool, to keep the concentration distribution of manganese sulfate solution in electrolytic cell uniform, by being equipped with on-line densimeter in buffer pool, using the principle that the density of manganese sulfate solution is also low when the concentration of manganese sulfate solution reduces, the concentration of manganese sulfate solution is detected, when lower than threshold value, higher concentration manganese sulfate solution can be supplemented, so that the manganese sulfate solution in electrolytic cell is kept in reasonable interval, and electrolytic efficiency is improved.

The application relates to the technical field of performance evaluation of a biological aerosol sampler, and provides a biological aerosol sampler performance evaluation method, which comprises the following steps: environment construction: adjusting and maintaining the temperature, humidity, air pressure and air cleanliness in a calibration cabin to a preset target range; aerosol generation and homogenization: generating standard aerosols containing a target tracer in the calibration cabin, and mixing the air in the cabin to form a test aerosol environment with uniform spatial concentration distribution in a sampling area; dynamic sampling: making the detected sampler and a comparative sampler sample at multiple different spatial points in the calibration cabin; data comparison and analysis: performing performance calibration on the detected sampler according to the sampling data of the detected sampler and the comparative sampler. The environment conditions highly close to actual application scenarios are constructed, and the comprehensive performance of the biological aerosol sampler can be scientifically, systematically and quantitatively evaluated and calibrated.

The utility model discloses a kind of real stone paint spraying devices, including workbench, the side of workbench is provided with adjusting mechanism, the adjusting mechanism includes support, the bottom of support is fixedly connected with workbench, the bottom of the front of support is fixedly connected with motor, the output of motor is fixedly connected with driving shaft, the front side and rear side of driving shaft surface are all fixedly connected with first synchronous wheel, the surface of first synchronous wheel is engaged with synchronous belt.The real stone paint spraying device is adjusted by setting adjusting mechanism, when angle is needed to be adjusted, start electric sliding table, electric sliding table drives adjusting frame to move, adjusting frame drives shaft to move, shaft drives gear to move, by the cooperation of toothed plate, gear moves in process will also be rotated, and then drive shaft rotation, shaft drives adjusting rod to rotate, adjusting rod drives nozzle to rotate ninety degrees, so that nozzle and ground correspond, then ground can be sprayed.